@Regneva great questions, James is on honeymoon at the moment so I will try and answer your questions for him.
The ratio of carbs-protein-fats - this is what James said here: Huel | Nutritionally Complete Food
The macronutrients we require from food are protein, fat and carbohydrate and in Huel we’ve set them at the ratio of 30:30:40 respectively; i.e. 30% of the energy comes from protein, 30% from fat and 40% from carbohydrates.
Amino acids are the most basic units of protein and several amino acids are essential for life with others being crucial for good health, so any diet has to contain a significant amount of protein. There are also fatty acids that are essential for life and good health, so including sources of fat is crucial too. Carbohydrates, however, are not essential per se, but they do have significant benefits to sustaining even energy levels and are significantly cheaper helping to make Huel more affordable.
We’ve designed Huel at these ratios as they are not only within the parameters of the healthy eating guidelines, but also are levels designed for optimum, sustained energy release whilst covering macronutritional requirements for disease prevention. Fats are more energy dense than protein or carbs, so including them at 30% means there’s less powder and bulk making Huel easier to consume to meet your energy requirements.
There is a thread about sodium here: Sodium content in Huel - #2 by JamesCollier
Where James said:
Whilst we see the low salt/sodium as a positive, we are tweaking it slightly upwards in the next version, but not too much.
So yes maybe add a little extra salt if you quite active.